2 p.m. - 3 p.m. Location: ECSS 3.503
The demand for higher wireless network data capacity is pushing networks towards dense spectrum reuse, wider bandwidths and towards large-element arrays. Similarly, emerging imaging applications require wide bandwidths and large arrays for high resolution. Therefore, MIMO arrays operating in interferer-rich environments from RF to mm-wave are emerging as the future design paradigm for integrated transceivers. Such large-scale arrays effectively address the challenge of closing link budgets with output power/performance available from CMOS devices. However, array scalability requires scalable RF interfaces, spatial filtering and synchronization. In this talk, I will provide an overview of our research on scalable RF-path spatial/spectral/code-domain filtering for in-band interferer cancellation. This approach supports MIMO operation while reducing required ADC dynamic range. I will also present work on scalable synchronization of arrays that enables simplified LO distribution and lower phase noise in arrays. Combining proposed architectures with baseband, analog, and digital MIMO filtering promises a path towards integrated receiver arrays for high data rate wireless communication and high resolution imaging.
Dr. Natarajan’s research is focused on mm-wave and sub-mm-wave integrated circuits and systems for high-speed wireless communication and imaging. He received the B.Tech. degree in electrical engineering from the Indian Institute of Technology, Madras, in 2001 and the M.S. and Ph.D. degrees in electrical engineering from the California Institute of Technology (Caltech), Pasadena, in 2003 and 2007, respectively. From 2007 to 2012, he was a Research Staff Member at IBM T. J. Watson Research Center, NY and worked on mm-wave phased arrays for multi-Gb /s data links and airborne radar and on self-healing circuits for increased yield in sub-micron process technologies. Dr. Natarajan received the National Talent Search Scholarship from the Government of India [1995-2000], the Caltech Atwood Fellowship in 2001, the Analog Devices Outstanding Student IC Designer Award in 2004, and the IBM Research Fellowship in 2005, and serves on the Technical Program Committee of the IEEE Radio-Frequency Integrated Circuits (RFIC) Conference.
Donna Kuchinski, 972-883-5556
Questions? Email me.